Is the resistance less than 3 ohms?
Yes | GO to B16 |
|---|---|
No | REPAIR the circuit in question. |
B13 CHECK FOR VOLTAGE TO THE REAR LAMP ASSEMBLY (ALL INOPERATIVE)
Ignition OFF. Disconnect: Inoperative LH Rear Lamp C498 or RH Rear Lamp C499. Ignition ON. While applying the brake pedal, measure:
Click to display connectors
LH Rear Lamp
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C498-5 | Ground |
Click to display connectors
RH Rear Lamp
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C499-5 | Ground |
Is the voltage greater than 11 volts?
Yes | GO to B15 |
|---|---|
No | GO to B14 |
B14 REPEAT THE ON-DEMAND SELF-TEST AND CHECK FOR VOLTAGE TO THE REAR LAMP ASSEMBLY
Using a diagnostic scan tool, perform the BCM self-test. Clear the Diagnostic Trouble Codes (DTCs) and repeat the self-test (required to enable the lamp output driver if DTC U1000:00 is present). While applying the brake pedal, measure:
Click to display connectors
LH Rear Lamp
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C498-5 | Ground |
2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.